Seiko Cal. 7180 - 330

The 7180-330 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7180 caliber with 31j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-5d04217a5251]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

13.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1999

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